有用的的用法和樣例：
例句
-
這是有用的書(shū)，更難得的是不貴。
It is a useful book and, what is more, not an expensive one.
-
有點(diǎn)依靠的東西總是有用的。
It's always useful to have something to fall back on.
-
向他解釋理由是沒(méi)有用的。
It is no use explaining the reason to him.
-
這會(huì )非常有用的。
It'll be most useful.
-
她是個(gè)應該結交的有用的人。
She is a useful person to know.
-
跟他們討論終止合同是沒(méi)有用的。
It's no use to discuss the termination of contract with them.
-
約翰經(jīng)常設法和對他有用的人結交。
John always tries to cultivate people who are useful to him.
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